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From: Corentin Labbe <clabbe@baylibre.com>
To: heiko@sntech.de, herbert@gondor.apana.org.au, krzk+dt@kernel.org,
	mturquette@baylibre.com, robh+dt@kernel.org, sboyd@kernel.org
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-clk@vger.kernel.org, linux-crypto@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
	Corentin Labbe <clabbe@baylibre.com>
Subject: [PATCH v3 12/26] crypto: rockchip: add debugfs
Date: Mon, 21 Mar 2022 20:07:25 +0000	[thread overview]
Message-ID: <20220321200739.3572792-13-clabbe@baylibre.com> (raw)
In-Reply-To: <20220321200739.3572792-1-clabbe@baylibre.com>

This patch enable to access usage stats for each algorithm.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
---
 drivers/crypto/Kconfig                        | 10 ++++
 drivers/crypto/rockchip/rk3288_crypto.c       | 47 +++++++++++++++++++
 drivers/crypto/rockchip/rk3288_crypto.h       | 11 +++++
 drivers/crypto/rockchip/rk3288_crypto_ahash.c |  8 ++++
 .../crypto/rockchip/rk3288_crypto_skcipher.c  | 19 +++++++-
 5 files changed, 94 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index d68cc2dc2bd5..b609215ecd62 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -801,6 +801,16 @@ config CRYPTO_DEV_ROCKCHIP
 	  This driver interfaces with the hardware crypto accelerator.
 	  Supporting cbc/ecb chainmode, and aes/des/des3_ede cipher mode.
 
+config CRYPTO_DEV_ROCKCHIP_DEBUG
+	bool "Enable Rockchip crypto stats"
+	depends on CRYPTO_DEV_ROCKCHIP
+	depends on DEBUG_FS
+	help
+	  Say y to enable Rockchip crypto debug stats.
+	  This will create /sys/kernel/debug/rk3288_crypto/stats for displaying
+	  the number of requests per algorithm and other internal stats.
+
+
 config CRYPTO_DEV_ZYNQMP_AES
 	tristate "Support for Xilinx ZynqMP AES hw accelerator"
 	depends on ZYNQMP_FIRMWARE || COMPILE_TEST
diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c
index 8f9664acc78d..3e1b4f3b2422 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.c
+++ b/drivers/crypto/rockchip/rk3288_crypto.c
@@ -95,6 +95,41 @@ static struct rk_crypto_tmp *rk_cipher_algs[] = {
 	&rk_ahash_md5,
 };
 
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+static int rk_crypto_debugfs_show(struct seq_file *seq, void *v)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(rk_cipher_algs); i++) {
+		if (!rk_cipher_algs[i]->dev)
+			continue;
+		switch (rk_cipher_algs[i]->type) {
+		case CRYPTO_ALG_TYPE_SKCIPHER:
+			seq_printf(seq, "%s %s reqs=%lu fallback=%lu\n",
+				   rk_cipher_algs[i]->alg.skcipher.base.cra_driver_name,
+				   rk_cipher_algs[i]->alg.skcipher.base.cra_name,
+				   rk_cipher_algs[i]->stat_req, rk_cipher_algs[i]->stat_fb);
+			seq_printf(seq, "\tfallback due to length: %lu\n",
+				   rk_cipher_algs[i]->stat_fb_len);
+			seq_printf(seq, "\tfallback due to alignment: %lu\n",
+				   rk_cipher_algs[i]->stat_fb_align);
+			seq_printf(seq, "\tfallback due to SGs: %lu\n",
+				   rk_cipher_algs[i]->stat_fb_sgdiff);
+			break;
+		case CRYPTO_ALG_TYPE_AHASH:
+			seq_printf(seq, "%s %s reqs=%lu fallback=%lu\n",
+				   rk_cipher_algs[i]->alg.hash.halg.base.cra_driver_name,
+				   rk_cipher_algs[i]->alg.hash.halg.base.cra_name,
+				   rk_cipher_algs[i]->stat_req, rk_cipher_algs[i]->stat_fb);
+			break;
+		}
+	}
+	return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(rk_crypto_debugfs);
+#endif
+
 static int rk_crypto_register(struct rk_crypto_info *crypto_info)
 {
 	unsigned int i, k;
@@ -246,6 +281,15 @@ static int rk_crypto_probe(struct platform_device *pdev)
 		goto err_register_alg;
 	}
 
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+	/* Ignore error of debugfs */
+	crypto_info->dbgfs_dir = debugfs_create_dir("rk3288_crypto", NULL);
+	crypto_info->dbgfs_stats = debugfs_create_file("stats", 0444,
+						       crypto_info->dbgfs_dir,
+						       crypto_info,
+						       &rk_crypto_debugfs_fops);
+#endif
+
 	dev_info(dev, "Crypto Accelerator successfully registered\n");
 	return 0;
 
@@ -260,6 +304,9 @@ static int rk_crypto_remove(struct platform_device *pdev)
 {
 	struct rk_crypto_info *crypto_tmp = platform_get_drvdata(pdev);
 
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+	debugfs_remove_recursive(crypto_tmp->dbgfs_dir);
+#endif
 	rk_crypto_unregister();
 	rk_crypto_disable_clk(crypto_tmp);
 	crypto_engine_exit(crypto_tmp->engine);
diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h
index 99b93841fbff..f85144e3d124 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.h
+++ b/drivers/crypto/rockchip/rk3288_crypto.h
@@ -7,6 +7,7 @@
 #include <crypto/algapi.h>
 #include <linux/dma-mapping.h>
 #include <linux/interrupt.h>
+#include <linux/debugfs.h>
 #include <linux/delay.h>
 #include <linux/scatterlist.h>
 #include <crypto/engine.h>
@@ -199,6 +200,10 @@ struct rk_crypto_info {
 	struct crypto_engine *engine;
 	struct completion complete;
 	int status;
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+	struct dentry *dbgfs_dir;
+	struct dentry *dbgfs_stats;
+#endif
 };
 
 /* the private variable of hash */
@@ -239,6 +244,12 @@ struct rk_crypto_tmp {
 		struct skcipher_alg	skcipher;
 		struct ahash_alg	hash;
 	} alg;
+	unsigned long stat_req;
+	unsigned long stat_fb;
+	unsigned long stat_fb_len;
+	unsigned long stat_fb_sglen;
+	unsigned long stat_fb_align;
+	unsigned long stat_fb_sgdiff;
 };
 
 extern struct rk_crypto_tmp rk_ecb_aes_alg;
diff --git a/drivers/crypto/rockchip/rk3288_crypto_ahash.c b/drivers/crypto/rockchip/rk3288_crypto_ahash.c
index d08e2438d356..8856c6226be6 100644
--- a/drivers/crypto/rockchip/rk3288_crypto_ahash.c
+++ b/drivers/crypto/rockchip/rk3288_crypto_ahash.c
@@ -39,6 +39,10 @@ static int rk_ahash_digest_fb(struct ahash_request *areq)
 	struct rk_ahash_rctx *rctx = ahash_request_ctx(areq);
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
 	struct rk_ahash_ctx *tfmctx = crypto_ahash_ctx(tfm);
+	struct ahash_alg *alg = __crypto_ahash_alg(tfm->base.__crt_alg);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.hash);
+
+	algt->stat_fb++;
 
 	ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
 	rctx->fallback_req.base.flags = areq->base.flags &
@@ -249,6 +253,8 @@ static int rk_hash_run(struct crypto_engine *engine, void *breq)
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
 	struct rk_ahash_rctx *rctx = ahash_request_ctx(areq);
 	struct rk_ahash_ctx *tctx = crypto_ahash_ctx(tfm);
+	struct ahash_alg *alg = __crypto_ahash_alg(tfm->base.__crt_alg);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.hash);
 	struct scatterlist *sg = areq->src;
 	int err = 0;
 	int i;
@@ -256,6 +262,8 @@ static int rk_hash_run(struct crypto_engine *engine, void *breq)
 
 	rctx->mode = 0;
 
+	algt->stat_req++;
+
 	switch (crypto_ahash_digestsize(tfm)) {
 	case SHA1_DIGEST_SIZE:
 		rctx->mode = RK_CRYPTO_HASH_SHA1;
diff --git a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
index 19bb9a9576d8..4ff08238156b 100644
--- a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
+++ b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
@@ -16,6 +16,9 @@
 
 static int rk_cipher_need_fallback(struct skcipher_request *req)
 {
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher);
 	struct scatterlist *sgs, *sgd;
 	unsigned int todo, len;
 	unsigned int bs = crypto_skcipher_blocksize(tfm);
@@ -27,10 +30,12 @@ static int rk_cipher_need_fallback(struct skcipher_request *req)
 	sgs = req->src;
 	while (sgs) {
 		if (!IS_ALIGNED(sgs->offset, sizeof(u32))) {
+			algt->stat_fb_align++;
 			return true;
 		}
 		todo = min(len, sgs->length);
 		if (todo % bs) {
+			algt->stat_fb_len++;
 			return true;
 		}
 		len -= todo;
@@ -40,10 +45,12 @@ static int rk_cipher_need_fallback(struct skcipher_request *req)
 	sgd = req->dst;
 	while (sgd) {
 		if (!IS_ALIGNED(sgd->offset, sizeof(u32))) {
+			algt->stat_fb_align++;
 			return true;
 		}
 		todo = min(len, sgd->length);
 		if (todo % bs) {
+			algt->stat_fb_len++;
 			return true;
 		}
 		len -= todo;
@@ -52,8 +59,10 @@ static int rk_cipher_need_fallback(struct skcipher_request *req)
 	sgs = req->src;
 	sgd = req->dst;
 	while (sgs && sgd) {
-		if (sgs->length != sgd->length)
+		if (sgs->length != sgd->length) {
+			algt->stat_fb_sgdiff++;
 			return true;
+		}
 		sgs = sg_next(sgs);
 		sgd = sg_next(sgd);
 	}
@@ -65,8 +74,12 @@ static int rk_cipher_fallback(struct skcipher_request *areq)
 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
 	struct rk_cipher_ctx *op = crypto_skcipher_ctx(tfm);
 	struct rk_cipher_rctx *rctx = skcipher_request_ctx(areq);
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher);
 	int err;
 
+	algt->stat_fb++;
+
 	skcipher_request_set_tfm(&rctx->fallback_req, op->fallback_tfm);
 	skcipher_request_set_callback(&rctx->fallback_req, areq->base.flags,
 				      areq->base.complete, areq->base.data);
@@ -333,6 +346,10 @@ static int rk_cipher_run(struct crypto_engine *engine, void *async_req)
 	u8 *ivtouse = areq->iv;
 	unsigned int len = areq->cryptlen;
 	unsigned int todo;
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher);
+
+	algt->stat_req++;
 
 	ivsize = crypto_skcipher_ivsize(tfm);
 	if (areq->iv && crypto_skcipher_ivsize(tfm) > 0) {
-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: Corentin Labbe <clabbe@baylibre.com>
To: heiko@sntech.de, herbert@gondor.apana.org.au, krzk+dt@kernel.org,
	mturquette@baylibre.com, robh+dt@kernel.org, sboyd@kernel.org
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-clk@vger.kernel.org, linux-crypto@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
	Corentin Labbe <clabbe@baylibre.com>
Subject: [PATCH v3 12/26] crypto: rockchip: add debugfs
Date: Mon, 21 Mar 2022 20:07:25 +0000	[thread overview]
Message-ID: <20220321200739.3572792-13-clabbe@baylibre.com> (raw)
In-Reply-To: <20220321200739.3572792-1-clabbe@baylibre.com>

This patch enable to access usage stats for each algorithm.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
---
 drivers/crypto/Kconfig                        | 10 ++++
 drivers/crypto/rockchip/rk3288_crypto.c       | 47 +++++++++++++++++++
 drivers/crypto/rockchip/rk3288_crypto.h       | 11 +++++
 drivers/crypto/rockchip/rk3288_crypto_ahash.c |  8 ++++
 .../crypto/rockchip/rk3288_crypto_skcipher.c  | 19 +++++++-
 5 files changed, 94 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index d68cc2dc2bd5..b609215ecd62 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -801,6 +801,16 @@ config CRYPTO_DEV_ROCKCHIP
 	  This driver interfaces with the hardware crypto accelerator.
 	  Supporting cbc/ecb chainmode, and aes/des/des3_ede cipher mode.
 
+config CRYPTO_DEV_ROCKCHIP_DEBUG
+	bool "Enable Rockchip crypto stats"
+	depends on CRYPTO_DEV_ROCKCHIP
+	depends on DEBUG_FS
+	help
+	  Say y to enable Rockchip crypto debug stats.
+	  This will create /sys/kernel/debug/rk3288_crypto/stats for displaying
+	  the number of requests per algorithm and other internal stats.
+
+
 config CRYPTO_DEV_ZYNQMP_AES
 	tristate "Support for Xilinx ZynqMP AES hw accelerator"
 	depends on ZYNQMP_FIRMWARE || COMPILE_TEST
diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c
index 8f9664acc78d..3e1b4f3b2422 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.c
+++ b/drivers/crypto/rockchip/rk3288_crypto.c
@@ -95,6 +95,41 @@ static struct rk_crypto_tmp *rk_cipher_algs[] = {
 	&rk_ahash_md5,
 };
 
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+static int rk_crypto_debugfs_show(struct seq_file *seq, void *v)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(rk_cipher_algs); i++) {
+		if (!rk_cipher_algs[i]->dev)
+			continue;
+		switch (rk_cipher_algs[i]->type) {
+		case CRYPTO_ALG_TYPE_SKCIPHER:
+			seq_printf(seq, "%s %s reqs=%lu fallback=%lu\n",
+				   rk_cipher_algs[i]->alg.skcipher.base.cra_driver_name,
+				   rk_cipher_algs[i]->alg.skcipher.base.cra_name,
+				   rk_cipher_algs[i]->stat_req, rk_cipher_algs[i]->stat_fb);
+			seq_printf(seq, "\tfallback due to length: %lu\n",
+				   rk_cipher_algs[i]->stat_fb_len);
+			seq_printf(seq, "\tfallback due to alignment: %lu\n",
+				   rk_cipher_algs[i]->stat_fb_align);
+			seq_printf(seq, "\tfallback due to SGs: %lu\n",
+				   rk_cipher_algs[i]->stat_fb_sgdiff);
+			break;
+		case CRYPTO_ALG_TYPE_AHASH:
+			seq_printf(seq, "%s %s reqs=%lu fallback=%lu\n",
+				   rk_cipher_algs[i]->alg.hash.halg.base.cra_driver_name,
+				   rk_cipher_algs[i]->alg.hash.halg.base.cra_name,
+				   rk_cipher_algs[i]->stat_req, rk_cipher_algs[i]->stat_fb);
+			break;
+		}
+	}
+	return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(rk_crypto_debugfs);
+#endif
+
 static int rk_crypto_register(struct rk_crypto_info *crypto_info)
 {
 	unsigned int i, k;
@@ -246,6 +281,15 @@ static int rk_crypto_probe(struct platform_device *pdev)
 		goto err_register_alg;
 	}
 
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+	/* Ignore error of debugfs */
+	crypto_info->dbgfs_dir = debugfs_create_dir("rk3288_crypto", NULL);
+	crypto_info->dbgfs_stats = debugfs_create_file("stats", 0444,
+						       crypto_info->dbgfs_dir,
+						       crypto_info,
+						       &rk_crypto_debugfs_fops);
+#endif
+
 	dev_info(dev, "Crypto Accelerator successfully registered\n");
 	return 0;
 
@@ -260,6 +304,9 @@ static int rk_crypto_remove(struct platform_device *pdev)
 {
 	struct rk_crypto_info *crypto_tmp = platform_get_drvdata(pdev);
 
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+	debugfs_remove_recursive(crypto_tmp->dbgfs_dir);
+#endif
 	rk_crypto_unregister();
 	rk_crypto_disable_clk(crypto_tmp);
 	crypto_engine_exit(crypto_tmp->engine);
diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h
index 99b93841fbff..f85144e3d124 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.h
+++ b/drivers/crypto/rockchip/rk3288_crypto.h
@@ -7,6 +7,7 @@
 #include <crypto/algapi.h>
 #include <linux/dma-mapping.h>
 #include <linux/interrupt.h>
+#include <linux/debugfs.h>
 #include <linux/delay.h>
 #include <linux/scatterlist.h>
 #include <crypto/engine.h>
@@ -199,6 +200,10 @@ struct rk_crypto_info {
 	struct crypto_engine *engine;
 	struct completion complete;
 	int status;
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+	struct dentry *dbgfs_dir;
+	struct dentry *dbgfs_stats;
+#endif
 };
 
 /* the private variable of hash */
@@ -239,6 +244,12 @@ struct rk_crypto_tmp {
 		struct skcipher_alg	skcipher;
 		struct ahash_alg	hash;
 	} alg;
+	unsigned long stat_req;
+	unsigned long stat_fb;
+	unsigned long stat_fb_len;
+	unsigned long stat_fb_sglen;
+	unsigned long stat_fb_align;
+	unsigned long stat_fb_sgdiff;
 };
 
 extern struct rk_crypto_tmp rk_ecb_aes_alg;
diff --git a/drivers/crypto/rockchip/rk3288_crypto_ahash.c b/drivers/crypto/rockchip/rk3288_crypto_ahash.c
index d08e2438d356..8856c6226be6 100644
--- a/drivers/crypto/rockchip/rk3288_crypto_ahash.c
+++ b/drivers/crypto/rockchip/rk3288_crypto_ahash.c
@@ -39,6 +39,10 @@ static int rk_ahash_digest_fb(struct ahash_request *areq)
 	struct rk_ahash_rctx *rctx = ahash_request_ctx(areq);
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
 	struct rk_ahash_ctx *tfmctx = crypto_ahash_ctx(tfm);
+	struct ahash_alg *alg = __crypto_ahash_alg(tfm->base.__crt_alg);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.hash);
+
+	algt->stat_fb++;
 
 	ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
 	rctx->fallback_req.base.flags = areq->base.flags &
@@ -249,6 +253,8 @@ static int rk_hash_run(struct crypto_engine *engine, void *breq)
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
 	struct rk_ahash_rctx *rctx = ahash_request_ctx(areq);
 	struct rk_ahash_ctx *tctx = crypto_ahash_ctx(tfm);
+	struct ahash_alg *alg = __crypto_ahash_alg(tfm->base.__crt_alg);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.hash);
 	struct scatterlist *sg = areq->src;
 	int err = 0;
 	int i;
@@ -256,6 +262,8 @@ static int rk_hash_run(struct crypto_engine *engine, void *breq)
 
 	rctx->mode = 0;
 
+	algt->stat_req++;
+
 	switch (crypto_ahash_digestsize(tfm)) {
 	case SHA1_DIGEST_SIZE:
 		rctx->mode = RK_CRYPTO_HASH_SHA1;
diff --git a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
index 19bb9a9576d8..4ff08238156b 100644
--- a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
+++ b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
@@ -16,6 +16,9 @@
 
 static int rk_cipher_need_fallback(struct skcipher_request *req)
 {
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher);
 	struct scatterlist *sgs, *sgd;
 	unsigned int todo, len;
 	unsigned int bs = crypto_skcipher_blocksize(tfm);
@@ -27,10 +30,12 @@ static int rk_cipher_need_fallback(struct skcipher_request *req)
 	sgs = req->src;
 	while (sgs) {
 		if (!IS_ALIGNED(sgs->offset, sizeof(u32))) {
+			algt->stat_fb_align++;
 			return true;
 		}
 		todo = min(len, sgs->length);
 		if (todo % bs) {
+			algt->stat_fb_len++;
 			return true;
 		}
 		len -= todo;
@@ -40,10 +45,12 @@ static int rk_cipher_need_fallback(struct skcipher_request *req)
 	sgd = req->dst;
 	while (sgd) {
 		if (!IS_ALIGNED(sgd->offset, sizeof(u32))) {
+			algt->stat_fb_align++;
 			return true;
 		}
 		todo = min(len, sgd->length);
 		if (todo % bs) {
+			algt->stat_fb_len++;
 			return true;
 		}
 		len -= todo;
@@ -52,8 +59,10 @@ static int rk_cipher_need_fallback(struct skcipher_request *req)
 	sgs = req->src;
 	sgd = req->dst;
 	while (sgs && sgd) {
-		if (sgs->length != sgd->length)
+		if (sgs->length != sgd->length) {
+			algt->stat_fb_sgdiff++;
 			return true;
+		}
 		sgs = sg_next(sgs);
 		sgd = sg_next(sgd);
 	}
@@ -65,8 +74,12 @@ static int rk_cipher_fallback(struct skcipher_request *areq)
 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
 	struct rk_cipher_ctx *op = crypto_skcipher_ctx(tfm);
 	struct rk_cipher_rctx *rctx = skcipher_request_ctx(areq);
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher);
 	int err;
 
+	algt->stat_fb++;
+
 	skcipher_request_set_tfm(&rctx->fallback_req, op->fallback_tfm);
 	skcipher_request_set_callback(&rctx->fallback_req, areq->base.flags,
 				      areq->base.complete, areq->base.data);
@@ -333,6 +346,10 @@ static int rk_cipher_run(struct crypto_engine *engine, void *async_req)
 	u8 *ivtouse = areq->iv;
 	unsigned int len = areq->cryptlen;
 	unsigned int todo;
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher);
+
+	algt->stat_req++;
 
 	ivsize = crypto_skcipher_ivsize(tfm);
 	if (areq->iv && crypto_skcipher_ivsize(tfm) > 0) {
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

WARNING: multiple messages have this Message-ID (diff)
From: Corentin Labbe <clabbe@baylibre.com>
To: heiko@sntech.de, herbert@gondor.apana.org.au, krzk+dt@kernel.org,
	mturquette@baylibre.com, robh+dt@kernel.org, sboyd@kernel.org
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-clk@vger.kernel.org, linux-crypto@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
	Corentin Labbe <clabbe@baylibre.com>
Subject: [PATCH v3 12/26] crypto: rockchip: add debugfs
Date: Mon, 21 Mar 2022 20:07:25 +0000	[thread overview]
Message-ID: <20220321200739.3572792-13-clabbe@baylibre.com> (raw)
In-Reply-To: <20220321200739.3572792-1-clabbe@baylibre.com>

This patch enable to access usage stats for each algorithm.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
---
 drivers/crypto/Kconfig                        | 10 ++++
 drivers/crypto/rockchip/rk3288_crypto.c       | 47 +++++++++++++++++++
 drivers/crypto/rockchip/rk3288_crypto.h       | 11 +++++
 drivers/crypto/rockchip/rk3288_crypto_ahash.c |  8 ++++
 .../crypto/rockchip/rk3288_crypto_skcipher.c  | 19 +++++++-
 5 files changed, 94 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index d68cc2dc2bd5..b609215ecd62 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -801,6 +801,16 @@ config CRYPTO_DEV_ROCKCHIP
 	  This driver interfaces with the hardware crypto accelerator.
 	  Supporting cbc/ecb chainmode, and aes/des/des3_ede cipher mode.
 
+config CRYPTO_DEV_ROCKCHIP_DEBUG
+	bool "Enable Rockchip crypto stats"
+	depends on CRYPTO_DEV_ROCKCHIP
+	depends on DEBUG_FS
+	help
+	  Say y to enable Rockchip crypto debug stats.
+	  This will create /sys/kernel/debug/rk3288_crypto/stats for displaying
+	  the number of requests per algorithm and other internal stats.
+
+
 config CRYPTO_DEV_ZYNQMP_AES
 	tristate "Support for Xilinx ZynqMP AES hw accelerator"
 	depends on ZYNQMP_FIRMWARE || COMPILE_TEST
diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c
index 8f9664acc78d..3e1b4f3b2422 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.c
+++ b/drivers/crypto/rockchip/rk3288_crypto.c
@@ -95,6 +95,41 @@ static struct rk_crypto_tmp *rk_cipher_algs[] = {
 	&rk_ahash_md5,
 };
 
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+static int rk_crypto_debugfs_show(struct seq_file *seq, void *v)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(rk_cipher_algs); i++) {
+		if (!rk_cipher_algs[i]->dev)
+			continue;
+		switch (rk_cipher_algs[i]->type) {
+		case CRYPTO_ALG_TYPE_SKCIPHER:
+			seq_printf(seq, "%s %s reqs=%lu fallback=%lu\n",
+				   rk_cipher_algs[i]->alg.skcipher.base.cra_driver_name,
+				   rk_cipher_algs[i]->alg.skcipher.base.cra_name,
+				   rk_cipher_algs[i]->stat_req, rk_cipher_algs[i]->stat_fb);
+			seq_printf(seq, "\tfallback due to length: %lu\n",
+				   rk_cipher_algs[i]->stat_fb_len);
+			seq_printf(seq, "\tfallback due to alignment: %lu\n",
+				   rk_cipher_algs[i]->stat_fb_align);
+			seq_printf(seq, "\tfallback due to SGs: %lu\n",
+				   rk_cipher_algs[i]->stat_fb_sgdiff);
+			break;
+		case CRYPTO_ALG_TYPE_AHASH:
+			seq_printf(seq, "%s %s reqs=%lu fallback=%lu\n",
+				   rk_cipher_algs[i]->alg.hash.halg.base.cra_driver_name,
+				   rk_cipher_algs[i]->alg.hash.halg.base.cra_name,
+				   rk_cipher_algs[i]->stat_req, rk_cipher_algs[i]->stat_fb);
+			break;
+		}
+	}
+	return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(rk_crypto_debugfs);
+#endif
+
 static int rk_crypto_register(struct rk_crypto_info *crypto_info)
 {
 	unsigned int i, k;
@@ -246,6 +281,15 @@ static int rk_crypto_probe(struct platform_device *pdev)
 		goto err_register_alg;
 	}
 
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+	/* Ignore error of debugfs */
+	crypto_info->dbgfs_dir = debugfs_create_dir("rk3288_crypto", NULL);
+	crypto_info->dbgfs_stats = debugfs_create_file("stats", 0444,
+						       crypto_info->dbgfs_dir,
+						       crypto_info,
+						       &rk_crypto_debugfs_fops);
+#endif
+
 	dev_info(dev, "Crypto Accelerator successfully registered\n");
 	return 0;
 
@@ -260,6 +304,9 @@ static int rk_crypto_remove(struct platform_device *pdev)
 {
 	struct rk_crypto_info *crypto_tmp = platform_get_drvdata(pdev);
 
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+	debugfs_remove_recursive(crypto_tmp->dbgfs_dir);
+#endif
 	rk_crypto_unregister();
 	rk_crypto_disable_clk(crypto_tmp);
 	crypto_engine_exit(crypto_tmp->engine);
diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h
index 99b93841fbff..f85144e3d124 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.h
+++ b/drivers/crypto/rockchip/rk3288_crypto.h
@@ -7,6 +7,7 @@
 #include <crypto/algapi.h>
 #include <linux/dma-mapping.h>
 #include <linux/interrupt.h>
+#include <linux/debugfs.h>
 #include <linux/delay.h>
 #include <linux/scatterlist.h>
 #include <crypto/engine.h>
@@ -199,6 +200,10 @@ struct rk_crypto_info {
 	struct crypto_engine *engine;
 	struct completion complete;
 	int status;
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+	struct dentry *dbgfs_dir;
+	struct dentry *dbgfs_stats;
+#endif
 };
 
 /* the private variable of hash */
@@ -239,6 +244,12 @@ struct rk_crypto_tmp {
 		struct skcipher_alg	skcipher;
 		struct ahash_alg	hash;
 	} alg;
+	unsigned long stat_req;
+	unsigned long stat_fb;
+	unsigned long stat_fb_len;
+	unsigned long stat_fb_sglen;
+	unsigned long stat_fb_align;
+	unsigned long stat_fb_sgdiff;
 };
 
 extern struct rk_crypto_tmp rk_ecb_aes_alg;
diff --git a/drivers/crypto/rockchip/rk3288_crypto_ahash.c b/drivers/crypto/rockchip/rk3288_crypto_ahash.c
index d08e2438d356..8856c6226be6 100644
--- a/drivers/crypto/rockchip/rk3288_crypto_ahash.c
+++ b/drivers/crypto/rockchip/rk3288_crypto_ahash.c
@@ -39,6 +39,10 @@ static int rk_ahash_digest_fb(struct ahash_request *areq)
 	struct rk_ahash_rctx *rctx = ahash_request_ctx(areq);
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
 	struct rk_ahash_ctx *tfmctx = crypto_ahash_ctx(tfm);
+	struct ahash_alg *alg = __crypto_ahash_alg(tfm->base.__crt_alg);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.hash);
+
+	algt->stat_fb++;
 
 	ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
 	rctx->fallback_req.base.flags = areq->base.flags &
@@ -249,6 +253,8 @@ static int rk_hash_run(struct crypto_engine *engine, void *breq)
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
 	struct rk_ahash_rctx *rctx = ahash_request_ctx(areq);
 	struct rk_ahash_ctx *tctx = crypto_ahash_ctx(tfm);
+	struct ahash_alg *alg = __crypto_ahash_alg(tfm->base.__crt_alg);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.hash);
 	struct scatterlist *sg = areq->src;
 	int err = 0;
 	int i;
@@ -256,6 +262,8 @@ static int rk_hash_run(struct crypto_engine *engine, void *breq)
 
 	rctx->mode = 0;
 
+	algt->stat_req++;
+
 	switch (crypto_ahash_digestsize(tfm)) {
 	case SHA1_DIGEST_SIZE:
 		rctx->mode = RK_CRYPTO_HASH_SHA1;
diff --git a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
index 19bb9a9576d8..4ff08238156b 100644
--- a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
+++ b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
@@ -16,6 +16,9 @@
 
 static int rk_cipher_need_fallback(struct skcipher_request *req)
 {
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher);
 	struct scatterlist *sgs, *sgd;
 	unsigned int todo, len;
 	unsigned int bs = crypto_skcipher_blocksize(tfm);
@@ -27,10 +30,12 @@ static int rk_cipher_need_fallback(struct skcipher_request *req)
 	sgs = req->src;
 	while (sgs) {
 		if (!IS_ALIGNED(sgs->offset, sizeof(u32))) {
+			algt->stat_fb_align++;
 			return true;
 		}
 		todo = min(len, sgs->length);
 		if (todo % bs) {
+			algt->stat_fb_len++;
 			return true;
 		}
 		len -= todo;
@@ -40,10 +45,12 @@ static int rk_cipher_need_fallback(struct skcipher_request *req)
 	sgd = req->dst;
 	while (sgd) {
 		if (!IS_ALIGNED(sgd->offset, sizeof(u32))) {
+			algt->stat_fb_align++;
 			return true;
 		}
 		todo = min(len, sgd->length);
 		if (todo % bs) {
+			algt->stat_fb_len++;
 			return true;
 		}
 		len -= todo;
@@ -52,8 +59,10 @@ static int rk_cipher_need_fallback(struct skcipher_request *req)
 	sgs = req->src;
 	sgd = req->dst;
 	while (sgs && sgd) {
-		if (sgs->length != sgd->length)
+		if (sgs->length != sgd->length) {
+			algt->stat_fb_sgdiff++;
 			return true;
+		}
 		sgs = sg_next(sgs);
 		sgd = sg_next(sgd);
 	}
@@ -65,8 +74,12 @@ static int rk_cipher_fallback(struct skcipher_request *areq)
 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
 	struct rk_cipher_ctx *op = crypto_skcipher_ctx(tfm);
 	struct rk_cipher_rctx *rctx = skcipher_request_ctx(areq);
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher);
 	int err;
 
+	algt->stat_fb++;
+
 	skcipher_request_set_tfm(&rctx->fallback_req, op->fallback_tfm);
 	skcipher_request_set_callback(&rctx->fallback_req, areq->base.flags,
 				      areq->base.complete, areq->base.data);
@@ -333,6 +346,10 @@ static int rk_cipher_run(struct crypto_engine *engine, void *async_req)
 	u8 *ivtouse = areq->iv;
 	unsigned int len = areq->cryptlen;
 	unsigned int todo;
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher);
+
+	algt->stat_req++;
 
 	ivsize = crypto_skcipher_ivsize(tfm);
 	if (areq->iv && crypto_skcipher_ivsize(tfm) > 0) {
-- 
2.34.1


_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2022-03-21 20:08 UTC|newest]

Thread overview: 123+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-21 20:07 [PATCH v3 00/26] crypto: rockchip: permit to pass self-tests Corentin Labbe
2022-03-21 20:07 ` Corentin Labbe
2022-03-21 20:07 ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 01/26] crypto: rockchip: use dev_err for error message about interrupt Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 02/26] crypto: rockchip: do not use uninit variable Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 03/26] crypto: rockchip: do not do custom power management Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 04/26] crypto: rockchip: fix privete/private typo Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 05/26] crypto: rockchip: do not store mode globally Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 06/26] crypto: rockchip: add fallback for cipher Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-22 11:25   ` Robin Murphy
2022-03-22 11:25     ` Robin Murphy
2022-03-22 11:25     ` Robin Murphy
2022-03-23 13:07     ` LABBE Corentin
2022-03-23 13:07       ` LABBE Corentin
2022-03-23 13:07       ` LABBE Corentin
2022-03-21 20:07 ` [PATCH v3 07/26] crypto: rockchip: add fallback for ahash Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 08/26] crypto: rockchip: better handle cipher key Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 09/26] crypto: rockchip: remove non-aligned handling Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 10/26] crypto: rockchip: rework by using crypto_engine Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 11/26] crypto: rockchip: rewrite type Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` Corentin Labbe [this message]
2022-03-21 20:07   ` [PATCH v3 12/26] crypto: rockchip: add debugfs Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 13/26] crypto: rockchip: introduce PM Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 14/26] crypto: rockchip: handle reset also in PM Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 15/26] crypto: rockchip: use clk_bulk to simplify clock management Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 16/26] crypto: rockchip: add support for r3399 Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 17/26] clk: rk3399: use proper crypto0 name Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-25  0:41   ` Stephen Boyd
2022-03-25  0:41     ` Stephen Boyd
2022-03-25  0:41     ` Stephen Boyd
2022-03-25  7:40     ` LABBE Corentin
2022-03-25  7:40       ` LABBE Corentin
2022-03-25  7:40       ` LABBE Corentin
2022-03-25 16:52       ` Stephen Boyd
2022-03-25 16:52         ` Stephen Boyd
2022-03-25 16:52         ` Stephen Boyd
2022-03-21 20:07 ` [PATCH v3 18/26] arm64: dts: rockchip: rk3399: add crypto node Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-22 12:00   ` Robin Murphy
2022-03-22 12:00     ` Robin Murphy
2022-03-22 12:00     ` Robin Murphy
2022-03-23 13:22     ` LABBE Corentin
2022-03-23 13:22       ` LABBE Corentin
2022-03-23 13:22       ` LABBE Corentin
2022-03-23 16:28       ` Heiko Stübner
2022-03-23 16:28         ` Heiko Stübner
2022-03-23 16:28         ` Heiko Stübner
2022-03-21 20:07 ` [PATCH v3 19/26] arm64: dts: rockchip: add rk3328 " Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 20/26] ARM: dts: rk3288: crypto does not need reset-names anymore Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 21/26] dt-bindings: crypto: convert rockchip-crypto to yaml Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-22  1:50   ` Rob Herring
2022-03-22  1:50     ` Rob Herring
2022-03-22  1:50     ` Rob Herring
2022-03-22  9:12     ` LABBE Corentin
2022-03-22  9:12       ` LABBE Corentin
2022-03-22  9:12       ` LABBE Corentin
2022-03-22 18:05       ` Krzysztof Kozlowski
2022-03-22 18:05         ` Krzysztof Kozlowski
2022-03-22 18:05         ` Krzysztof Kozlowski
2022-03-22 18:04   ` Krzysztof Kozlowski
2022-03-22 18:04     ` Krzysztof Kozlowski
2022-03-22 18:04     ` Krzysztof Kozlowski
2022-03-24 16:20     ` LABBE Corentin
2022-03-24 16:20       ` LABBE Corentin
2022-03-24 16:20       ` LABBE Corentin
2022-03-24 18:19       ` Krzysztof Kozlowski
2022-03-24 18:19         ` Krzysztof Kozlowski
2022-03-24 18:19         ` Krzysztof Kozlowski
2022-03-21 20:07 ` [PATCH v3 22/26] crypto: rockchip: add support for rk3328 Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 23/26] crypto: rockchip: Check for maximum frequency of clocks Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 24/26] crypto: rockchip: add myself as maintainer Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 25/26] crypto: rockchip: fix style issue Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07 ` [PATCH v3 26/26] crypto: rockchip: use read_poll_timeout Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe
2022-03-21 20:07   ` Corentin Labbe

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